[all-commits] [llvm/llvm-project] 18d574: [llvm-cov] Add inline exclusion marker support for...

[Maksim Levental via All-commits]

  Branch: refs/heads/users/makslevental/inline-excl-llvm-cov
  Home:   https://github.com/llvm/llvm-project
  Commit: 18d574d93359599c4ce2be9fa19c032d377c8b54
      https://github.com/llvm/llvm-project/commit/18d574d93359599c4ce2be9fa19c032d377c8b54
  Author: makslevental <maksim.levental at gmail.com>
  Date:   2026-06-13 (Sat, 13 Jun 2026)

  Changed paths:
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers-custom-region/report-custom-region.covmapping
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers-custom-region/report-custom-region.cpp
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers-custom-region/report-custom-region.profdata
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers-custom/report-custom.covmapping
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers-custom/report-custom.cpp
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers-custom/report-custom.profdata
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers-region/report-region.covmapping
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers-region/report-region.cpp
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers-region/report-region.profdata
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers/report.covmapping
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers/report.cpp
    A llvm/test/tools/llvm-cov/Inputs/exclude-markers/report.profdata
    A llvm/test/tools/llvm-cov/exclude-markers.test
    M llvm/tools/llvm-cov/CodeCoverage.cpp
    M llvm/tools/llvm-cov/CoverageReport.cpp
    M llvm/tools/llvm-cov/CoverageSummaryInfo.h
    M llvm/tools/llvm-cov/CoverageViewOptions.h

  Log Message:
  -----------
  [llvm-cov] Add inline exclusion marker support for coverage reporting

Add --exclude-line-regex, --exclude-region-start-regex, and
--exclude-region-stop-regex options to llvm-cov. These allow excluding
lines from coverage totals based on inline source comments.

Defaults: LCOV_EXCL_LINE (single line), LCOV_EXCL_START/LCOV_EXCL_STOP
(region). This brings parity with lcov/gcov exclusion markers and
kcov --exclude-line regex support.

The implementation scans source files for markers when loaded, builds a
per-file set of excluded line numbers, and subtracts them from the line
coverage totals in prepareFileReports().

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply at anthropic.com>



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